Fault-tolerant algorithm design of low-cost integrated train positioning system

被引：0
|
作者：
Liu J. [1 ,2 ]
Cai B.-G. [1 ]
Tang T. [2 ]
Wang J. [1 ,2 ]
Shanguan W. [1 ,2 ]
机构：
[1] School of Electronic and Information Engineering, Beijing Jiaotong University
[2] State Key Laboratory of Rail Traffic Control and Safety, Beijing Jiaotong University
来源：
Tiedao Xuebao/Journal of the China Railway Society | 2011年 / 33卷 / 01期
关键词：
Fault detection and isolation; Fault-tolerant; Information fusion; Integrated positioning; Train positioning; Wavelet transform;
D O I：
10.3969/j.issn.1001-8360.2011.01.007
中图分类号：
学科分类号：
摘要：
Real-time positioning is an important part of train control. In the modern safety-critical train control system, the fault-tolerant ability of train positioning is highly demanded to guarantee the safety of the whole system. Starting from the safety requirements of train positioning, based on the consideration of fault-tolerant performance, an integrated train positioning system is formed by integration of the low-cost GPS receiver, inertial measurement unit and odometer. The structure and function of the integrated system are given, the wavelet transform theory is employed for fault detection, the fault isolation strategies are analyzed, and the fault-tolerant information fusion algorithm in the federated structure is designed based on the H∞ robust filter. Results from experiment and simulation demonstrate that the integrated positioning system can meet the precision requirement with high fault-tolerance, and keep train positioning efficiently and safely in various environments.
引用
收藏
页码：39 / 46
页数：7
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